Plastic pipe joint and method and assembly for making same

Details Plastic pipe joint and method and assembly for making same Plastic pipe joint and method and assembly for making same

B - Operations, Transporting

29

C

18/938

B29C 57/02 (2006.01)

Patent

CA 1112414

Abstract of the Disclosure A bell and spigot pipe joint including a bell end having a locked-in sealing gasket and a thickened cross-sectional configuration is disclosed herein. A method and an apparatus for making this bell end with its thickened cross-sectional configuration and with the sealing gasket locked in place are also disclosed herein. In accordance with the present invention, the bell end is formed, its cross-sectional configuration is thickened, and a circumferential sealing gasket is locked in place, all at approximately the same time and using one overall apparatus. Thus in contrast with the prior art, the end of the pipe is not pre-thickened or post-thickened before the bell is formed thereon.

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